baber/WOPTO huggingface dataset:
Patent GB-884953-A (GB)
Title: Energy absorber
IPC: B60R19/34
Filed: 1960-07-08
Abstract: 884,953. Vehicle bumpers. GENERAL MOTORS CORPORATION. July 8, 1960 [Aug. 12, 1959], No. 23909/60. Class 103(2). [Also in Group XXXIV] An energy absorbing device (see Group XXXIV) for use as a vehicle bumper comprises a tube of ductile material each end of which is connected to one of a pair of thrust-transmitting members such that relative movement of the thrust-transmitting member axially of the tube bends the tube inside out over at least part of its length. A pair of energy absorbing devices 5 are attached to a vehicle frame 1 (Fig. 1) and thrust-transmitting rods 10 are attached to a conventional bumper 4. The energy absorbing devices 5 each comprise a tube 6 of ductile material of constant circular cross section secured at one end to a hollow thrust-transmitting member 5 welded to cross brace 3 of vehicle frame 1. The other end of tube 6 is formed with an internal radial flange 7 and a plate 8 welded thereto. In the event of an impact shock such as from a vehicle collision, each thrust-transmitting rod 10 is progressively moved within the tube 6 and both the rod and the tube are received within the member 1 to deform the tube from the shape shown in Fig. 2 to the shape shown in Fig. 3, thereby to dissipate the kinetic energy.
Patent GB-1537498-A (GB)
Title: Optical fibre loss measurement
IPC: G01M11/02
Filed: 1975-06-03
Abstract: Specified for the purpose of measuring the optical attenuation in optical fibres is a measuring device whose elements are accommodated in a housing provided with two optical fibre connectors. The most important of the elements mentioned are a laser with its driver circuit, a photodetector and a display instrument, both together with the electronic circuits. Calibrating the measuring device is performed by means of a short connecting piece of the same type of optical fibre as the fibre to be measured. After calibration, the connecting piece is replaced by the fibre to be measured and the new pointer reading of the display instrument is read off. <IMAGE>
Patent GB-644431-A (GB)
Title: Improvements in or relating to braking devices for vehicles
IPC: B60T8/18
Filed: 1947-08-29
Abstract: 644,431. Fluid pressure operated brakes. PERROT, P. H., and DESOUCHES, H. B. Aug. 29, 1947, Nos. 23979 and 23980. Convention dates, Nov. 19, 1945 and March 6, 1946. [Class 103 (i)] A braking arrangement for a vehicle comprises in addition to the normal braking system a supplementary power-assisted brake using the induction depression of the motor and connected therewith by the operation of a threeway cock characterized in that an electric contact is arranged to close the circuit of a warning, lamp when the vehicle is loaded, the same lamp being extinguished when the cock controlling the actuation of the supplementary brake is opened to bring the power-assisted brake into circuit. A member 38 whose deformation varies with the load automatically closes the switch 35 when the load reaches a certain value and this closes the circuit from the generator 36 to the warning lamp 31. When the three-way cock 19 is opened to bring the power-assisted brake into operation switch 32 is open-circuited and the warning lamp 31 is extinguished. Various braking systems using this general electrical circuit are described and the threeway cock 19 may be operated automatically.
Patent GB-864345-A (GB)
Title: Improvements in or relating to hooded handlebar levers
Inventor: LETHERLAND HARRY
IPC: B62L3/02
Filed: 1956-08-04
Abstract: 864,345. Control levers. RALEIGH CYCLE CO. Ltd. Aug. 6, 1957 [Aug. 4, 1956], No. 24092/56. Addition to 797,588. Class 136(1). In a modification of the hooded handlebar lever of the parent Specification the edges of the seam of the bracket are secured to one another. As shown in Fig. 1, a disc like plate 12 is welded across the seam 11 or the edges of the seam 16 may be directly interlocked by a dovetail formation 17 (Fig. 3). Alternatively the butting edges of the seam may be directly welded together.
Patent GB-178044-A (GB)
Title: Improvements in skittle alleys
IPC: A63D5/02
Filed: 1921-09-10
Abstract: 178,044. Wõchter, F. Sept. 10, 1921. No Patent granted (Sealing fee not paid). Skittle alleys.-The rear wall of a skittle alley is protected from the impact of the balls by a padded screen stretched by means of springs d.
Patent GB-696621-A (GB)
Title: Improvements relating to pulverising and classifying apparatus for solid materials
Inventor: ANDREWS NORWOOD HENRY
IPC: B07B4/00
Filed: 1951-10-16
Abstract: 696,621. Pneumatic separators; cetrifugal separators. FREEPORT SULPHUR Co. Oct. 16, 1951, No. 24116/51. Classes 23 and 117 Apparatus for classifying a stream of high velocity gas laden with solid particles comprises a circulation chamber 11 through which a pulverizing gas e.g. steam is injected by means of jets 28, the chamber being provided with a funnel 38 so as to divide it into upper and lower portions which are in communication both near their peripheries and their centres and with a central pipe 33 which is surrounded by a primary classifying chamber 36 and connects the chamber 11 with a secondary classifying chamber 12 constituting a cyclone which is provided with a discharge pipe 52, a bypass duct 63 communicating with the chambers 11, 12, and 36 and with a jacket 22 provided centrally of the chamber 11. The jacket covers a slot, or a number of aligned openings, 21, Fig. 4, provided in the wall of the chamber 11. The chamber 36 comprises a cylindrical sleeve 29 formed with a turned-in lower edge 30 spaced from the upper edge of the funnel 38, and a conical shell having its lower edge spaced slightly from the sleeve 29. The chamber 12 is provided with a funnel 54, a baffle ring 57, and a tangential opening 62 leading to the upper end of the duct 63. Dampers 33a, 63a, and 65a are provided in the pipe 33, duct 63, and in a branch pipe 65 connecting the duct 63 to the chamber 36. Material to be ,pulverized is fed to the chamber 11 from a hopper 25. U.S.A. Specification 1,953,058, is referred to.
Patent GB-297214-A (GB)
Title: Improvements in or relating to means for opening milk bottles and the like
IPC: B67B7/12
Filed: 1927-09-13
Abstract: 297,214. Cole, H. Sept. 13, 1927. Cork extractions and like appliances.-Relates to devices for removing discclosures from milk bottles &c., of the type comprising a cap and a downwardlyextending pointed member which engages the disc to be removed. The device according to the invention comprises a head or cover l having a depending bar &c. a with a conical or like shouldered head d which pierces and engages beneath the disc. The bar a is secured in a boss h in the head l and may have an annular grove o into which the Bakelite or like material forming the head is pressed. The word " Bakelite " is a registered trade mark.
Patent GB-946385-A (GB)
Title: Electrical control apparatus
IPC: G05B13/02
Filed: 1962-06-22
Abstract: 946, 385. Automatic speed control. WESTING- HOUSE ELECTRIC CORPORATION. June 22, 1962 [July 20, 1961], No. 24155/62. Heading G3R. [Also in Division H2] A Ward Leonard generator G supplying motor M has its reversible field winding F energized from push-pull magnetic amplifier MA1 having cores S1, S2, which are kept from saturation by supplying power selectively to control windings 16, 15. A bi-stable magnetic amplifier MA2 has a reference winding 4, and a feedback winding 1 which is responsive to motor speed and acceleration. A feedback winding 2 receives a signal representing the rate of change of acceleration (as detected by the armature current) of the motor. For values of the armature voltage below a predetermined value, a further signal is applied to winding 2 proportional to the armature voltage. For voltages above that value, the feedback signal does not vary with armature voltage. A feedback winding 3 receives a signal proportional to the rate of change of armature voltage, that is, the rate of change of acceleration of the motor. If the combined feedback voltage is greater than the reference voltage, a negative potential is applied to the base of transistor 81 in Schmitt trigger circuit 80. Transistor 81 is rendered conductive and transistor 91 is cut off, so that there is no output signal on line 21. If the reference signal is greater than the sum of the feedback signals, transistor 91 conducts and an output signal is applied to line 21. Bi-stable magnetic amplifiers MA3, MA4, are utilized as reverse current and forward current limiters respectively. Reference windings 7, 11, receive signals representing the desired maximum values for the forward and reverse current with zero armature voltage. The current limit is reduced with increasing armature voltage by means of windings 10, 14, which receive an armature voltage signal. Feedback windings 8, 12, have impressed thereon a signal proportional to armature current, whilst windings 13, 9, are energized in accordance with the rate of change of armature current. The limiter MA3 supplies a signal to line 21 when the reference signal is greater than the sum of the feedback signals, that is when the reverse current limitation is exceeded. The limiter MA4 will apply a signal to line 20 until the current in the Ward Leonard circuit exceeds the prescribed limit and then will switch to zero. The signals from lines 20, 21, are fed to AND circuit 60 associated with flip-flop circuit 70. With zero signals on lines 20, 21, winding 16 is energized to de-saturate core S1, the winding 15 being de-energized and core S2 saturated. If a signal is received on line 21 the state of flip-flop 70 is not changed. If signals are received on both lines 20, 21, the winding 16 is de-energized and the winding 15 is energized. The field F of the generator is thus continuously regulated by being reversed at a random rate. The system may be modified to control generator voltage instead of motor speed, Fig. 4 (not shown). Specification 909,112 is referred to.
Patent GB-228220-A (GB)
Title: Improvements in and relating to the manufacture of water-soluble phosphates
IPC: C05B11/08
Filed: 1923-09-28
Abstract: Hydrated calcium phosphate, preferably precipitated di-calcium hydrogen phosphate, is treated with sulphuric or phosphoric acid and ammonium sulphate or with ammonium bisulphate to obtain ammonium phosphate.  According to the Provisional Specification finely-ground tri-calcium phosphate may be employed. Specification 184,206 is referred to.ALSO:Hydrated calcium phosphate, preferably precipitated decalcium phosphate is treated with sulphuric or phosphoric acid and an alkali or ammonium sulphate or with an alkali or ammonium bisulphate to obtain an alkali or ammonium phosphate.  It is preferred to use a small excess of acid except when making ammonium phosphate.  According to the Provisional Specification, tricalcium phosphate may be used as starting material. Specification 184,206 is referred to.
Patent GB-919527-A (GB)
Title: Automatic phonograph
IPC: G11B17/24
Filed: 1961-07-05
Abstract: 919,527. Keyboard switches. ROCK-OLA. MANUFACTURING CORPORATION. July 5, 1961 [March 10, 1961], No. 24259/61. Class 38 (5). [Also in Group XXXVIII] Lettered and numbered banks of 10 pushbuttons 252 are pressed in combination to select items from a 10 Î 10 array of titles 24 displayed on a juke-box (see Group XXXVIII). The buttons are biased outwardly by springs 58 and their stems 256 carry members adapted to enter inclined slots 264 in locking bars 262, the depression of a buttom moving the bar 262 sufficiently transversely to prevent the depression of a second button in the same bank. Supplementary bars 262b, rigidly attached to the bars 262 carry latch pawls 272 engaging over pins 282 unless blocked upwardly by blocking arms 290 which are lowered by a solenoid energized when credit coin-freed means indicate remaining credit. Switch contacts of known type are mounted in the spaces 312, 314 and are operated by plunger elements 316 attached to the stems 256. Switches 302, 304, operated by the latch pawls 272 in the downward position are opened in the absence of credit to prevent selection information being passed to the selection register. U.S.A. Specification 2,804,307 is referred to.
Patent GB-591150-A (GB)
Title: Improvements in or relating to the high frequency induction heating of metals
IPC: C21D1/10
Filed: 1944-12-05
Abstract: 591,150. Induction heating. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. Dec. 5, 1944, No. 24286. Drawings to Specification. [Class 39 (iii)] Heating metals by high-frequency electric fields so as to control the heating effects at different depths within the metal by means of a plurality of frequencies, has for its object a less steep temperature gradient than that obtainable with a single high-frequency field. In one method described, separate H.F. generation and inductor coils operating at different frequencies are employed. In another method, one inductor coil is fed from a single generator supplying two or more frequencies. Various methods of generating the desired frequencies are described.
Patent GB-194659-A (GB)
Title: Improvements in machines for slicing meat and the like
IPC: B26D1/143
Filed: 1922-09-08
Abstract: 194,659. Sewerin, P. E. March 8, 1922, [Convention date]. Cutting slices in succession.-In a machine of the type in which a rotary knife co-operates with a reciprocating carriage, the carriage is reciprocated by a mangle rack. As shown, the rack is secured to the carriage by a lug 1, and at the ends of the rack alternate teeth are omitted. A pinion on a universally-jointed driven shaft gears with the rack teeth and is guided by slots 3.
Patent GB-256427-A (GB)
Title: Improvements in lighting shades for billiard tables and the like
IPC: F21V7/05
Filed: 1925-09-30
Abstract: 256,427. Boivie, S. E., and Muggeridge, E: J. D. Sept. 30, 1925. Reflectors.-A billiard-table or like lamp shade comprises sloping sides 2, 4 and a preferably flat rectangular crown or top 5 from which depends a transverse bevel-edged V-shaped partition 6 on each side of which are arranged one or moreelectric lamp bulbs 8 or other sources of light located wholly within the shade, the sides and partition being provided with ventilating holes 9, 10. Preferably the partition extends below thesources of light but not to the bottom of the shade and the shade is. so arranged that lines drawn down the sloping sides intersect the boundary o$ the surface to be illuminated. The shade and partition may be made of cardboard, wood, or metal, and may be painted or enamelled green on the outside and painted white or otherwise provided with a reflecting surface on the inside. The shade may be suspended by a known form of device adapted to prevent rotation.
Patent GB-540878-A (GB)
Title: Improvements in or relating to the metering of lubricant
IPC: F16N27/00
Filed: 1939-08-24
Abstract: 540,878. Regulating fluid flow. AUTO RESEARCH CORPORATION. Aug. 24, 1939, No. 24424. Convention date, Aug. 24, 1938, [Class 135] [Also in Group XXXIV] In a centralized lubricating system such as described in Specification 237,958, [Class 135], in which lubricant is supplied under pressure to a branched distributing piping system having high restriction, flow metering outlets comprising bores fitted with elongated pins having a clearance of the order of one or more thousandths of an inch, the pins or the bores are formed at one or both ends or along their length with enlargements ensuring that the pins will be centred in or take a predetermined position in the bores. Figs 1 and 2 show a flow metering device A fitted with a pin 31 maintained centrally in the bore 30 by projections 50 at the outlet end of the bore. Lubricant is supplied by a tube T secured to the device A by a nut 18 and sleeves 21, 23 and passes through a felt plug 27 and strainer cup 28 to the clearance space between the pin 31 and bore 30. The outlet of the device A is formed with an annular seating 33 for a spring-pressed valve 35 consisting of an oil-silk disc backed by a metal disc. Specifications 441,405 and 448,792, [Group XXVIII], are referred to.
Patent GB-1423657-A (GB)
Title: Vinyl chloride polymer compositions
IPC: C08L33/02
Filed: 1972-05-24
Abstract: 1423657 Degradable vinyl chloride polymer compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 3 May 1973 [24 May 1972] 24455/72 Heading C3P A degradable composition comprises a vinyl chloride polymer and an iron salt of a carboxylic acid having the formula where R is a hydrocarbon group with up to 30 carbon atoms. The composition may also contain a carboxylic acid preferably the same as the salt and an impact modifier. In examples polyvinyl chloride or a vinyl chloride/ethylene copolymer is compounded with ferric stearate, stearic acid and optionally lauric acid, dibutyl tin dinonyl thioglycolate stabilizer and a butadiene/styrene/methyl methacrylate copolymer as impact modifier. The compositions become brittle when exposed to sunlight.
Patent GB-234362-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/14
Filed: 1924-10-15
Abstract: 234,362. DÚri, L., and Balazs, A. Oct. 1924. Reservoir pens.-A fountain pen is provided with a chamber for solid ink, communicating with the conduit to the nib for the liquid in the container, formed as a branch or pocket of, and connected in parallel with the feed-conduit. The conduit 10 is formed in a plug 9 mounted in the nib-section 8, and is provided with a chamber 12 for solid ink, closed at its rear end and communicating with the conduit 10 through apertures 13 or a slot. The chamber 12 may be closed at the front end by a removable stopper. In a modification, the feed-conduit and the ink-chamber are formed in the ink-section, the plug 9 being dispensed with.
Patent GB-934080-A (GB)
Title: Reforming processes
IPC: C10G35/085
Filed: 1961-07-06
Abstract: In the reforming of hydrocarbons containing dehydrocyclizable components in the presence of hydrogen and a platinum-alumina catalyst, at least 40% of the platinum is maintained in a form soluble in HF or acetylacetone.  In a preferred modification the reforming is effected in several stages with intermediate heating in the initial stage or stages of which the catalyst contains less than 40% HF-soluble platinum, and in the final stage or stages the platinum is maintained in the HF-soluble form by frequent regeneration with oxygen, i.e. every 0,1-10 hours, by having for example three or more reactors of which two or more are on regeneration.  Alternatively the final stage may use a fluidized p or moving bed catalyst.  Preferably the catalyst also contains chlorine in an atom ratio to platinum of at least 2:1.
Patent GB-747025-A (GB)
Title: Stabilised synchronising system
IPC: H04N5/12
Filed: 1953-09-04
Abstract: 747,025. Automatic synchronizing systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 4, 1953 [Oct. 27, 1952], No. 24543/53. Class 38 (4). In a television receiver synchronizing system a flyback pulse from a scanning system 17 is applied to open a gating valve 26 to a delayed synchronizing pulse from a synchronizing signal separator 7, so that the pulses are applied without intervening noise to a phase discriminator (not shown), controlling the frequency and phase of a scan oscillator of the system 17, a wave from the oscillator also being applied to the discriminator for comparison. The sync. pulse 3a, superimposed on a blanking pedestal 2 (Fig. 2), may be delayed relative to the latter by a tuned circuit 21, 22 inductively coupled to the sync. separator 7 and excited by the pulse 3a so that only an upper portion 12 (Fig. 2B) of a second half-cycle of the excited oscillation overcomes the self-bias of the gate valve 26. The flyback pulse 18 (Fig. 2C) may therefore start some time ahead of the locally derived synchronizing pulse 12 without foldover being caused. The phasing of the wave applied from the scan oscillator to the discriminator may be adjusted by an iron-cored slug slightly offtuning an input to the discriminator from the oscillator.
Patent GB-283260-A (GB)
Title: Improvements relating to ropeways
IPC: B61B12/02
Filed: 1926-10-04
Abstract: 283,260. Main, G. A., and Main Ropeways, Ltd. Oct. 4, 1926. Rope railways.-In ropeways provided with a load rope 2 and traction rope 6, Fig. 1, the rope 6 is given one or more turns round a drum 8 on the carrier 1, the drum being set fixed or rotatable either automatically or by an operator. A similar drum 13 engages a stationary safety rope 7. The drums are controlled by brake bands 14, 15 each having one end secured to a pivot 18 and the other end carried by a sector 21 pivoted at 18 and engaged by a worm 22 which is rotated by a handle 23 or by a wheel 24 engaging a stationary brake-bar at the entrance to stations, &c. Rope 6 also passes round a tension wheel 10. The drums are carried by a shaft 9 having a gear wheel 28, Fig. 5, meshing with a wheel 29 on a shaft 30 coupled to a hoisting-barrel 26 controlled by brake-band 35 and pedal 36. A clutch 31 operated by a hand-wheel 32 controls the raising of the load, while pedal 36 controls the lowering.
Patent GB-425116-A (GB)
Title: Improvements in or relating to boiler furnaces
IPC: F23M7/00
Filed: 1933-09-05
Abstract: 425,116. Regulating air supply; doors. PUFFETT, H., 91, Bishopsgate, London. Sept. 5, 1933, No. 24589. [Class 51 (i)] A furnace door 1 is provided with an airheating chamber 3, open at the bottom and communicating with the furnace through a perforated wall 4, the supply of air through the chamber being controlled by a valve or damper 5 which is caused to open automatically when the door is shut. The valve or damper has pivoted to its lower edge a bolt 6 which abuts against a lug 7 as the door is shut and opens the damper. The handle of the bolt may be lifted to permit the valve or damper to close by gravity. To ensure that the air regulator in the firebridge is opened before the door is opened, the door is provided with a pivoted latch 9 which is free to swing outwardly when the door is open, but is prevented from moving inwardly by the abutment 9<a>, Fig. 4, engaging with the top 9<b> of a recess in the door. The lower end of the latch engages with a, notch 10 in the rod 8 for actuating the air regulator when the door is closed so that the rod 8 must be moved forwardly to open the regulator before the door can be opened. Steam jet nozzles may be arranged above the door opening. Specification 288,479, [Class 51 (i)], is referred to.
Patent GB-686571-A (GB)
Title: An improved means for transporting sheet material for example, through a photographic processing machine
Inventor: LEVENSON GERALD ISAAC PASTERNA
IPC: G03D5/04
Filed: 1950-10-09
Abstract: 686,571. Photographic processing apparatus. KODAK, Ltd. Oct. 9, 1951 [Oct. 9, 1950], No. 24600/50. Addition to 669,405. Drawings to Specification. Class 98 (ii). [Also in Group XXX. In a photographic processing apparatus having means for conveying wet sheet material through a sequence of processing compartments as claimed in the parent Specification, the belts of each web are made of an extensible material having embedded or incorporated in or just under the outer surface an inextensible material or one which has less elasticity than the extensible material. Preferably each belt is made of rubber and the embedded material comprises a textile fabric, metal filaments, or a plastic or rubber having less elasticity than the belt itself.